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A ball on a thin, effectively massless wire is spinning around a support rod as shown in position A below. Suddenly the ball moves to Position B with no added net torque.

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How does the angular velocity change as a result of doubling the radius?

A

The angular velocity is doubled when the radius is doubled.

B

The angular velocity is halved when the radius is doubled.

C

The angular velocity is quadrupled when the radius is doubled.

D

The angular velocity is quartered when the radius is doubled.

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